Fix broken cross-links in documentation

[ThePhantom-S]

Pull Request: Fix broken cross-links in documentation

Description

This PR updates internal links within CONTRIBUTING.md to use root-relative paths.

Previously, relative links (e.g., ./CODE_OF_CONDUCT.md) broke when viewed via the GitHub repository's "Contributing" overview tab. This is because that tab renders content at the root level, causing relative paths to resolve incorrectly.

By switching to root-relative paths (starting with /), these links now resolve correctly in both:

1. The Blob view (file-specific context).
2. The Overview tab (repository-root context).

This approach also maintains full compatibility with local editor previews (e.g., VS Code).

Changes

• File: .github/CONTRIBUTING.md
• Action: Updated community health file cross-links to use absolute root paths (e.g., /.github/CODE_OF_CONDUCT.md).

Verification

• Links verified in local IDE/editor.
• Links verified in GitHub Blob view.
• Links verified via the repository "Contributing" overview tab.

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[github-actions]

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[github-actions]

👋 Hey there spelunker. It looks like you've modified some files that we can't accept as contributions:

• .github/CONTRIBUTING.md

You'll need to revert all of the files you changed that match that list using GitHub Desktop or git checkout origin/main <file name>. Once you get those files reverted, we can continue with the review process.

The complete list of files we can't accept are:

• .devcontainer/**
• .github/**
• data/reusables/rai/**
• Dockerfile*
• src/**
• package*.json
• content/actions/how-tos/security-for-github-actions/security-hardening-your-deployments/**

We also can't accept contributions to files in the content directory with frontmatter contentType: rai.